console log with custom colors

console_color.js

var CONSOLE_CSS = 'background:#a4aa0a; color:white; padding:0 4px'; // default
 
function CustomConsole (prefix, console_css) {
  // choose passed arg or default constant
  console_css = console_css || CONSOLE_CSS;
 
  function processArgs () {
    var args = Array.prototype.slice.call(arguments);  // converts Arguments to Array
    args.shift();                                      // remove console method
    args.unshift('%c' + prefix, console_css);          // adds custom css and prefix at the beginning
    return args;
  }
 
  function handler (type) {
    return console[type].apply(console, processArgs.apply(this, arguments));
  }
 
  // export public methods: .info(), .warn(), etc
  ['log', 'info', 'warn'].forEach(function(type) {
    this[type] = handler.bind(handler, type);
  }, this);
}
 
 
var console_css = 'background:#baff00; color:black; padding:0 4px';
var _console = new CustomConsole('gameManager', console_css);
var truc = 'hello you';
var machin = 'hello machin';
_console.warn('Neo', truc, machin);